Gospel Polemics, Part 1

Wow, exactly! http://thegospelcoalition.org/blogs/tgc/2011/09/20/gospel-polemics-part-1/

FYI- polemics is

1a: an aggressive attack on or refutation of the opinions or principles of another   

 

b: the art or practice of disputation or controversy —usually used in plural but singular or plural in construction

I had to look it up too :)